Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8KK callsign genealogy
Currently held by Radigan, John J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by N8KK's current licensee, walking backwards.
- SCHWILK, JEFFREY AOHgranted 2012-04-10cancelled 2018-10-10
Successor callsigns
Callsigns held now by people who previously held N8KK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8KK, oldest first.
- Radigan, John J FL2006-06-21 → cancelled 2018-09-20
- SCHWILK, JEFFREY A OH2018-10-10 active